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    • 10. 发明授权
    • Scanning method for determining a touch position of a touch input apparatus
    • 用于确定触摸输入装置的触摸位置的扫描方法
    • US08355012B2
    • 2013-01-15
    • US12916928
    • 2010-11-01
    • Wei-Chou ChenChung-Wen Hsu
    • Wei-Chou ChenChung-Wen Hsu
    • G06F3/042
    • G06F3/0428
    • A scanning method for determining the touch position of a touch input apparatus is disclosed. First of all, a first exposure process on light sensors of the touch input apparatus by light emitting device of the touch input apparatus is performed. Then the light sensors are scanned. A light sensor generating a signal with a maximum value is located. A region of partial scan of the light sensors is determined according to the position of the light sensor generating the signal with the maximum value. A second exposure process is performed on the light sensors. Then the light sensors within the region of partial scan are scanned. A light sensor generating a signal with a maximum value within the region of partial scan is located and a next region of partial scan is determined. The maximum value of the signal is calculated and the maximum value of the signal is compared to a predetermined value to determine whether the maximum value is higher than the predetermined value.
    • 公开了一种用于确定触摸输入装置的触摸位置的扫描方法。 首先,对触摸输入装置的发光装置的触摸输入装置的光传感器进行第一曝光处理。 然后扫描光传感器。 定位产生具有最大值的信号的光传感器。 根据产生具有最大值的信号的光传感器的位置确定光传感器的部分扫描区域。 对光传感器进行第二曝光处理。 然后扫描部分扫描区域内的光传感器。 定位产生在部分扫描区域内具有最大值的信号的光传感器,并确定下一个部分扫描区域。 计算信号的最大值,并将信号的最大值与预定值进行比较,以确定最大值是否高于预定值。